Magus

Magus has been imprisoned in a tower in the Waterfall Kingdom and tortured for years - his crime is sublime, his history is a mystery, his might is right. Magus remains handcuffed, locked up, imprisoned, static, immovable, clueless, powerless, until a new prisoner named Kinna arrives and forces him to escape. Once Magus has escaped then their journey to discover Magus's true identity and abilities begins. Magus uses chroma magic, his innate talent to absorb power from colored stones in the surrounding environment and then to unleash deadly attacks. Along the way they must face the wrath of the Kingdom Waterfall plus battle them to uncover identity of Magus's purpose.